Posts in English

How to index Loki logs as vectors in pgvector and answer natural-language questions with an LLM Planner, SQL aggregations, and RAG.

How to build useful telemetry for Node apps with OpenTelemetry, the Collector, the LGTM stack, and log-to-trace correlation in Grafana.

Notes on how Cursor consumes LLM tokens and practical tips to reduce your usage.

Event Sourcing is an architectural pattern where the application state is determined by the sequence of events that occurred, rather than storing only the current state.

How Domain-Driven Design and Hexagonal Architecture work together to isolate business logic from frameworks, databases, and other technical dependencies.